AquariusPanta
Well-Known Member
According to MC's logos or logic, only the radiation or otherwise heat takes place when it is absorbed.
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Dr.D81
Well-Known Member
It is not transfered to heat that is just how we perceive it. when we or anything emite ir we are giving of ir light or the ir imaging would not work.
AquariusPanta
Well-Known Member
I'm not really thinking photography when discussing IR but rather like the IR imaging they use for night time vision and stuff. Since IR light can't be seen by the human eye (most of it if not all), then it can only be seen through the heat that it produces.
AquariusPanta
Well-Known Member
Just to make sure you and I are on the same page Hyrootz, your saying that ALL light, visible or non-visible, carries with it photons and that when photons are absorbed by any physical matter, for our purposes only, then heat is either a.) transferred (weird to think) or b.) created ?electromagnetic radiation
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AquariusPanta
Well-Known Member
SomeGuy, were secretly trying to get your thread ribboned through this tiny discourse over IR 
Dr.D81
Well-Known Member
Same thing ran them both.
mc130p
Well-Known Member
Just because your eye does not see infrared photons does not mean that the CCD of a camera can not. Long story short, photons are not heat.
AquariusPanta
Well-Known Member
Could you reestablish your argument for me? So far I have down that you believe that we emit light like lightbulbs, which, as wacky as that sounds, may be a case.
AquariusPanta
Well-Known Member
Photons or light/radiance is only heat when it touches or is absorbed by a physical matter?
AquariusPanta
Well-Known Member
A example of this would be when the sun comes out and you warm up. When the sun dips down, it gets cooler out.
So while photons or light from the sun don't directly carry heat, they do somehow produce it when they touch physical matter.
So while photons or light from the sun don't directly carry heat, they do somehow produce it when they touch physical matter.
mc130p
Well-Known Member
Photons are little packets of energy. When things absorb energy, one of the things that can happen is that its temperature can increase. If the system does work, like photosynthesis in a plant, then some of that energy can be used for other things besides being wasted as thermal energy.
churchhaze
Well-Known Member
When an electron of an atom absorbs a photon, it changes goes up to a higher energy orbital.
When an electron falls to a lower energy orbital, it emits a photon with exactly the amount of energy released from the electron falling in state.
In other words, the absorbance/emittance of atoms can only happen at very specific amounts of energy, one for each possible difference of orbitals(possible places the electron can be in the atom)
Here are all the possible places an electron can be. It's the periodic table!
When an electron falls to a lower energy orbital, it emits a photon with exactly the amount of energy released from the electron falling in state.
In other words, the absorbance/emittance of atoms can only happen at very specific amounts of energy, one for each possible difference of orbitals(possible places the electron can be in the atom)
Here are all the possible places an electron can be. It's the periodic table!
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churchhaze
Well-Known Member
When a material absorbs one wavelength and re-emits a higher wavelength, it's called fluorescence. Since the absorbed photon has more energy than the photon lost, the difference is heat, which is basically speeding up the atom itself.
This is how the yellow phosphor coating works. It absorbs the narrow band of blue and emits a wide band centered around amber.
This is how the yellow phosphor coating works. It absorbs the narrow band of blue and emits a wide band centered around amber.
AquariusPanta
Well-Known Member
A very clear explanation of your understanding. I like it.
AquariusPanta
Well-Known Member
BOOOO chemistryWhen an electron of an atom absorbs a photon, it changes goes up to a higher energy orbital.
When an electron falls to a lower energy orbital, it emits a photon with exactly the amount of energy released from the electron falling in state.
In other words, the absorbance/emittance of atoms can only happen at very specific amounts of energy, one for each possible difference of orbitals(possible places the electron can be in the atom)
Here are all the possible places an electron can be. It's the periodic table!
I enjoy science but some of it is so ambiguous and unintuitive... I guess you gotta find the matching ends to different topics, such as light and physical matter, before you find the attraction
Dloomis514
Well-Known Member
Just as an example, liquid nitrogen tanks at minus 300 are wrapped with a reflective sheet in a vacuum insulated annular space. The wrap is intended to reflect radiant energy of the nitrogen back into itself.
AquariusPanta
Well-Known Member
Ok this example demonstrates that nitrogen emits radiant energy, just as humans and plants do?
Dloomis514
Well-Known Member
Yes, even at minus 300 degrees
